Battery clamp



Nov. 15, 1949 ADAMS 2,487,917

BATTERY CLAMP I Filed Dec. 26, 1947 INVENTOR.

Patented Nov. 15, 1949 UNI D stare BATTERY CLAMP V Mozel A. AdamaRayne,La,

' 7 1i Application December 26,

2' Claims. (01. 123-259) This invention relates to battery terminalclamps. V

An object of this invention is to provide a battery terminal or clampwhich is so constructed as to eliminate the formation of corrosionaround the clamp so that the latter can be readily applied or removedfrom the terminal post.

Another object of this invention is to provide a clamp of this kindwhich is sealed at its upper and lower ends against the admission of airor the like, the clamp including an inner metal clamping element adaptedto have electrical contact with the terminal post.

Another object of this invention is to provide a clamp of this kindwhich includes a pair of terminal post piercing pins or points which,when the clamp is in applied position, will provide for positiveelectrical connection with the post and prevent endwise or circularmovement of the clamp relative to the post.

A further object of this invention is to provide a clamp of this kindwhich is substantially enclosed in a non-metallic casing forming aclamping element for the inner metal contact or terminal engagingmember, so 'that the pressure applying bolt which engages through thenonmetallic element will be free from corrosion and the clamp may bereadily removed after it has been in applied position on a battery for aperiod of time.

With the above and other objects in view, my invention consists in thearrangement, combination and details of construction disclosed in thedrawings and specification, and then more particularly pointed out inthe appended claims.

In the drawings,

Figure 1 is a plan view clamp constructed according to an of thisinvention,

Figure 2 is a vertical section taken substantially on the line 2-2 ofFigure 1, showing the clamp in applied position,

Figure 3 is a sectional view taken on the line 3-3 of Figure 2,

Figure 4 is a plan view of the metal contact clamp embedded within theinsulating cover.

Referring to the drawings, the numeral I designates generally asubstantially cylindrical terminal post clamping member which is splitas indicated at I l.

A socket I2 is formed integral with the clamping member I0 being formedwith a bore IS within which the end of a battery cable [4 is adapted tobe stored or otherwise firmly secured.

The inner side of the clamping member ID is of a battery terminalembodiment formed with a pair 1941, Serial No. 193,900

2 of opposed points or teeth l5 which, when the clamping member is inapplied position about a terminal post l6, are adapted to project intothe body of the post as shown in Figure 3, so as to thereby provide forpositive electrical contact between the clamping member ID and theterminal post l6.

In order to provide for elimination of corrosion when the clampingmember ID is in applied position, I have provided a non-metallicclamping cover H which is formed with a pair of spaced jaws i8 and IS.

The height of the cover I1 is substantially greater than the height ofthe clamping member l0, and upper and lower fibrous sealing members 20and 2| are disposed within the outer body I] and abut against the upperand lower ends of the clamping member l0.

9 The annular sealing members 20 and 2| are adapted to be soaked in oil,grease or the like and are of such width that when the jaws l8 and [9are tightened through the medium of a bolt 22 which engages through thetwo jaws l8 and IS, the sealing members 20 and 2| will be compressedabout the terminal post and will thereby form a seal at the upper andlower ends of the clamping member l0.

The post It may be formed with a pair of vertical grooves 23 withinwhich the teeth l5 engage, and the upper ends of the grooves 23 areclosed 12): teeth 24 carried by the upper sealing member Through theprovision of the non-metallic cover l1 including the clamping jaws l8and I9, there will be no exposed metal which can become corroded and bydisposing the bolt 22 through the non-metallic jaws l8 and Hi, this boltwill remain free from the accumulation of corrosion.

Having thus described my invention, what I claim is:

1. A corrosion-preventing coupling means for connecting a cable to astorage battery comprising a terminal post cylindrical in cross-sectionand having a longitudinal groove extending inwardly from its outer end,a split metallic clamping member of tubular contour mounted on said postand having a tooth biting into the post within said groove, a cableconnector extending from said clamping member, said clamping memberbeing insertible over and removable from said post through relativemovement longitudinally of the post, a split non-metallic cover for saidclamping member and said cable connector, said cover extending beyondthe ends of said connecting member in spaced relationship with saidpost, said groove being of less length than said connecting member, anon-metallic seal of annular contour fitting about the post at the innerend of the connecting member and in the space between the post and saidcover, a second non-metallic seal of annular contour fitting about thepost at the opposite end of said connecting member and in the spacebetween the cover and the post, said last-mentioned seal having asealing projection fitting in said groove, and a bolt co-active withsaid cover for clamping said clamping member tightly on said post.

2. A corrosion-preventing coupling means for connecting a cable to astorage battery comprising a terminal post cylindrical in cross-sectionand having two longitudinal grooves' extending inwardly from its outerend, :a split metallic clamping member of tubular contour mounted onsaid post and having teeth biting into the post within said grooves, acable connector extending from saidclamping'member, said clampingrmemherbeing insertible 'over and removable *from said post through relativemovement longitudinally of the post, a split non-metallic cover forsaid-clamping member and said cable connector, said cover extendingbeyond the ends of said connecting member in spaced relationship withsaid post, said groove being of less length than said connecting member,a non-metallic sealing washer fitting about the post at the inner end ofthe connecting member and in the space between the post and said cover,a second nonmetallic sealing washer fitting about the post at theopposite end of the connecting member and in the space between the postand the cover, said last-mentioned washer having sealing, projectionsfitting in saidgrooves, "anda bolt co-Eactive with said cover forclamping the clamping member lightly on said post.

MOZEL A. ADAMS.

REFERENCES CITED The -following references are of record in the file .ofthis patent:

UNITED STATES PATENTS

